Page 157 - ITU Journal, ICT Discoveries, Volume 3, No. 1, June 2020 Special issue: The future of video and immersive media

ITU Journal: ICT Discoveries, Vol. 3(1), June 2020

The cover page of ITU-T T.80 [11] is shown in Fig. 10.

Fig. 10 – Title page of ITU-T T.80 [11]
ITU-T T.80 [11] describes the toolkit (common components) advantages/disadvantages as follows,
“5.6.1 Toolkit (Common components) concept

Requirements are to be applicable to practically any kind of continuous-tone multi-level, limited-level,
bi-level digital source images (i.e. for most practical purposes not to be restricted to images of certain
dimensions, colour spaces, pixel aspect ratios, etc.) and not to be limited to classes of imagery with
restrictions on scene content (such as line drawing and/or text in case of Recommendations T.4 and T.6),
including complexity, range of colours and statistical properties.

To achieve the above goal, the concept of using for image compression “Common components” from a
Toolkit shall be a basic requirement.

Note – Advantages:
– various requirements of different imaging applications can be satisfied in a flexible way;
– use of common hardware/software components when implementing imaging application,
make implementation easier and more economical;
– easier harmonization of different imaging for CCITT and ISO/IEC applications;
– easier implementation of interworking among imaging applications;

© International Telecommunication Union, 2020 135